13242636 has 96 divisors (see below), whose sum is σ = 38223360. Its totient is φ = 3931200.

The previous prime is 13242629. The next prime is 13242637. The reversal of 13242636 is 63624231.

13242636 is a `hidden beast` number, since 1 + 3 + 24 + 2 + 636 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13242637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84270 + ... + 84426.

It is an arithmetic number, because the mean of its divisors is an integer number (398160).

Almost surely, 2^13242636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13242636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19111680).

13242636 is an abundant number, since it is smaller than the sum of its proper divisors (24980724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13242636 is a wasteful number, since it uses less digits than its factorization.

13242636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 244 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 13242636 is about 3639.0432808638. The cubic root of 13242636 is about 236.5873286490.

Adding to 13242636 its reverse (63624231), we get a palindrome (76866867).

The spelling of 13242636 in words is "thirteen million, two hundred forty-two thousand, six hundred thirty-six".